Mobile computing

“What it means is Eclipse now gets to expand its footprint beyond the traditional computing environment, and it gets to reach out to the mobile device.

TWO KINDS OF MOBILITY:

•USER MOBILITY

•DEVICE MOBILITY

WHAT IS MOBILE COMPUTTING:

•DEFECTOR STANDARD BY ITSELF

•MAJOR PART OF WIRELESS COMMUNICATION TECHNOLOGY

Application

Transport Network Data Link Physical

Network Network

Data Link Data Link Physical Physical

Application

Transport Network Data Link Physical

A SIMPLIFIED REFERENCE MODEL

The wireless devices represent the ultimate constrained computing device with:

•Less powerful CPUs,

•Less memory (ROM and RAM)

•Restricted power consumption

•Smaller displays

•Different input devices (e.g., a phone keypad, voice input, etc.)

On the network side, wireless networks are constrained by

•Less bandwidth

•More latency

•Less connection stability

•Less predictable availability

Goals, assumptions, and requirements:

The Internet is the network for global data communication with hundreds of millions of users. So why not simply use a mobile computer in the Internet?

Requirements:

•Compatibility

•Transparency

•Scalability and efficiency

•Security

APPLICATIONS:

1. Vehicles

2. Emergencies

3. Business

4. MOBILE AND WIRELESS DEVICES

5. Sensor:

6. Pager:

7. Mobile Phones:

8. Personal digital assistant:

9. Palmtop/pocket computer:

10.Notebook/Laptop:

CONCLUSION

Mobile Computing and Communications is useful for wireless Networks. The study of different versions will give differences between Mobile Computing and Communications, Access Control, Security etc.,

QUERIES????

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